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Colour Reaction of Ni with CAS, Quanoiine and CTMAB

HE Za

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Abstract

A sensitive colour reaction of Ni with chromazurol S, quinoline and CTMAB has been studied in the pH range of 10-11. The maxium absorption of the complex is at 640 nm and molar absorptivity is 1.48×105L·mol-1·cm-1·Beer's law is obeyed in the range of 0-10μg/25 ml Ni. The composition ratio of Ni to CAS, quiuoline and CTMAB is 1:2:2:4.Interferences from foreign ions and their elimination have also been studied. The method has been applied to the determination of trace Ni in ores with satisfactory results.

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A sensitive colour reaction of Ni with chromazurol S, quinoline and CTMAB has been studied in the pH range of 10-11. The maxium absorption of the complex is at 640 nm and molar absorptivity is 1.48×105L·mol-1·cm-1·Beer's law is obeyed in the range of 0-10μg/25 ml Ni. The composition ratio of Ni to CAS, quiuoline and CTMAB is 1:2:2:4.Interferences from foreign ions and their elimination have also been studied. The method has been applied to the determination of trace Ni in ores with satisfactory results.

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Available abstract

A sensitive colour reaction of Ni with chromazurol S, quinoline and CTMAB has been studied in the pH range of 10-11. The maxium absorption of the complex is at 640 nm and molar absorptivity is 1.48×105L·mol-1·cm-1·Beer's law is obeyed in the range of 0-10μg/25 ml Ni. The composition ratio of Ni to CAS, quiuoline and CTMAB is 1:2:2:4.Interferences from foreign ions and their elimination have also been studied. The method has been applied to the determination of trace Ni in ores with satisfactory results.

Key concepts: Molar absorptivity, Chemistry, Analytical Chemistry (journal), Ion, Quinoline, Molar ratio, Absorption (acoustics), Nuclear chemistry

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